Patent Application
20220402114
The invention relates to a storage unit, in particular a tool and gear wagon for storing tools, comprising at least one body with a plurality of pull-out drawers which can be arrested via at least one locking unit such that, when any one of the drawers is pulled out, the other drawers are blocked.
Storage units for tools can consist, for example, of tool and gear wagons, but also of stationary tool cabinets which are usually employed in the professional field, e. g. in a car repair shop or a manufacturing line, for example in the final assembly or repair of passenger cars or lorries. This, however, does not exclude a use in the private field. Here, in particular the tool and gear wagons can be pointed out as they are particularly often employed due to their flexibility and are used here to receive a plurality of hand tools or special tools which always have to be conveniently available and are present in an optically attractive and sorted form, so that not much time is spent on searching a certain tool. For this reason, the tool and gear wagons are fitted with several drawers which can be pulled out from a body. The drawers are here held via guiding or telescopic rails which permit to completely pull out the drawers. By this, the complete line of tools required in a workshop or a manufacturing line is always conveniently available. In particular in workshops, however, stationary tool cabinets are used instead of tool and gear wagons which are arranged directly proximate to the workplaces not only to divide the workplaces, but also to store tools.
In many cases, however, one tool drawer is not enough, and one quite often has to switch between different tools during the assembly which are located in different drawers, so that two or more drawers have to be used alternately.
The storage units known from prior art, in particular tool and gear wagons, have a locking unit that also includes, apart from the locking of the cabinet or tool and gear wagon, a catch which permits to pull out only one single drawer. As soon as one drawer has been pulled out at least partially, all other drawers are blocked. For this reason, it is very cumbersome to always have to push in the drawers to the limit stop and only then be able to pull out another drawer. The reason why such a locking unit is provided is that the range of tools can have an own weight of several kilos, and the overturning moment is thus changed when several drawers are pulled out, and the tool and gear wagon could tip over.
From German utility model DE 20 2005 018 504 U1, for example, a tool and gear wagon is known which is fitted with such a locking unit. From German utility model DE 20 2018 100 948 U1, another embodiment of a tool and gear wagon which also has a locking unit is equally known. The locking units are designed therein individually, but they always allow for only one single drawer to be pulled out, while the other drawers are simultaneously locked. Even in case the tool and gear wagon is to be cleaned, it is not possible to pull out, for example, all drawers or a major part of the drawers.
The invention relates to a storage unit, in particular a tool and gear wagon 1, for storing tools, comprising at least one body 2 with several pull-out drawers 4 which can be arrested via at least one locking unit 40 such that, when any one of the drawers 4 is pulled out, the other drawers 4 are blocked. In order to be able to pull out several drawers and preferably adjust them individually, it is provided for the locking unit to have an adjustment element which ensures the function of locking in a first position, and in a second position, the release of at least more than one drawer is provided.
In order to eliminate the above-mentioned problems in tool cabinets or tool and gear wagons, the object underlying the present invention is to fit a storage unit with a new locking unit offering an increased flexibility when the drawers are pulled out.
To achieve this object, the locking unit has, according to the invention, an adjustment element which ensures the function of locking in a first position, and in a second position, the release of at least more than one drawer is provided. Further advantageous embodiments of the invention result from the subclaims.
In the present case, the locking unit is combined with an adjustment element which ensures the function of locking in a first position, and permits the release of at least more than one drawer in a second position. Thus, a fitter can decide himself which function of the tool cabinet or tool and gear wagon makes sense for him personally. This can be, for example, drawers in the lower or upper region which, however, offer the possibility of simultaneously employing only a few tools at a time because other tools are also provided in the drawers below it. Thereby, the inconvenient pushing-in of individual drawers and the assurance that an existing locking is cancelled again by the pushed-in drawer before a further drawer is pulled out are eliminated. If a higher overturning moment occurs in tool and gear wagons due to the pulled-out drawers and the tools stored therein, this can be compensated, for example, by the bottom element of the tool and gear wagon being fitted with weights that ensure an increased stability even if several drawers are pulled out, where in an extreme case, all drawers can be pulled out, including the range of tools, without the tool and gear wagon tipping over. If it is a matter of tool cabinets, these can be fixed to the wall to prevent them from tipping over.
The substantial advantage in the storage unit according to the invention is thus that the locking unit can be arrested in two positions, optionally also several positions, by an adjustment element, and such a storage unit can thus be used conventionally with locked drawers, but if required, the locking unit is deactivated and it is thus possible to pull out more than one drawer at a time.
To permit a locking, the telescopic rails are fitted with a blocking element in the rear region which corresponds to the locking unit. The blocking elements are used to vertically shift the locking units and are each mounted in a recess as a guide which is located in the telescopic rails. By a spring, the blocking element is pressed towards the locking elements, that means in the pull-out direction, and pressed into the rear region, as seen from the front, of the recess against the spring force by a pushed-in drawer. If a drawer is pulled out, the spring presses the blocking element in the pull-out direction and thereby between the locking elements so that a locking of the other drawers can be accomplished. The moveability of the blocking element is here determined by the length of the recess and is dimensioned such that a pushing back into an end position is easily possible without reaching the end of the recess, and during the pulling-out of the drawer, there is sufficient moveability so that the blocking element can come between the locking elements due to the spring force. Moreover, the spring-cusioned blocking element causes the drawers to slide into their respective end positions and to be quasi cushioned.
The blocking elements of each drawer, which are mounted in a recess of the telescopic rails, furthermore include a coupling with blocking elements mounted within the telescopic rails which are simultaneously activated in case of an arrest of the externally protruding blocking elements and thereby prevent further drawers from being pulled out. The telescopic rails employed herein are employed in industry in multifarious forms and are thus to be considered as prior art.
The locking unit consists of a U-shaped panel at which vertically movable locking elements are arranged corresponding to the number of drawers. The U-shaped panel here only serves to fasten the locking elements which are fastened, for example by means of two studs or optionally rivets, to the U-shaped panel such that they nevertheless are vertically slidable. This slideability is ensured, for example, by formed oblong holes of the locking elements. The movement of the locking elements is triggered by the blocking element which runs against the locking element and runs against a stop face, so that the drawer cannot be pulled out any further if one drawer has already been pulled out, for example. Otherwise, if no drawer has been pulled out yet, the blocking element causes a vertical movement of the locking elements located above the blocking element to the top by sliding between the locking elements, while the locking elements located underneath the blocking element are blocked. If, for example, a central drawer is pulled out, the locking elements that are located vertically higher are vertically shifted to the top whereby the blocking effect of the limit stop comes into effect. By the blocking of the locking elements, the further blocking elements which are associated with the bottom lower drawers cannot reach between the locking elements so that these drawers are also blocked. The particularity here is that by one blocking element, one or more locking elements are vertically shiftable and thereby activate the catch. To this end, the locking elements are flatly fixed on the basis of the U-shaped panel in a slidable manner by studs or optionally rivets, wherein the locking elements have a vertical moveability due to existing oblong holes.
The U-shaped panel with the locking element forms the basis to perform the locking of the individual drawers, where the present invention provides that by a repositioning of the U-shaped panel, all drawers can be permanently unlocked. There are basically two possibilities for this. The U-shaped panel can be fixed to the body of the storage unit by hinges, and by pivoting the U-shaped panel, the complete locking of all drawers can be deactivated. As an alternative, it is possible for the U-shaped panel to perform a horizontal and vertical movement by a mechanism, so that the blocking elements also disengage from the locking elements and all drawers are released thereby. For example, two U-shaped panels can be used which have different bases and can thus slide into one another. A first U-shaped panel is stationarily connected with the body while the second U-shaped panel is vertically and horizontally movable with respect to the first U-shaped panel via guiding pins and guiding grooves and can be moved into the first U-shaped panel and submerge in it by this movement.
In a further embodiment of the storage units, in particular in the form of a tool cabinet or a tool and gear wagon, the adjustment element consists of a spring-loaded locking pin which can be arrested in several bores, or the adjustment element consists of an internal mechanism which permits, by means of a rotating cylinder lock with a key, an adjustment and arrest of the locking unit from outside. By means of the cylinder lock, the operation of the locking unit for changing the position is substantially facilitated and permits a change of the adjustment at any time. By the lock, the locking can be advantageously only changed by means of a key.
To lock the other drawers after one drawer has already been pulled out, the locking unit is used which consists of the U-shaped panel with a corresponding number of locking elements, depending on how many drawers the tool cabinet or tool and gear wagon has. To this end, it is necessary for the U-shaped panel to be fixed in a certain position. To deactivate the blocking of the other drawers, the U-shaped panel is, in a first embodiment, connected with the body via at least two hinges so as to be movable in a pivoting manner, the hinges having a vertical axis of rotation. Due to the selected construction, it is therefore possible to pivot the U-shaped panel in its vertical arrangement about a vertical axis of rotation. Exclusively by pivoting, it is achieved hereby that the blocking elements do no longer come into engagement with the locking elements and thereby, all drawers can be pulled out one after another. This unlocking is achieved, in a first exemplified embodiment, only and exclusively by pivoting the U-shaped panel because the blocking elements are arranged to be freely movable at this moment.
In order to securely hold the U-shaped panel in the one or in the other position, in a further embodiment of the invention, the U-shaped panel includes a holding bracket for a locking pin preloaded with a spring which engages with a bore of the bottom element of the body with its free end. By means of the locking pin which engages with a bore of the bottom element, at least two positions, optionally also several positions, can be fixed if required. In the most simple case, a first position of the U-shaped panel is fixed by a first bore, and a second position by a second bore, wherein the locking pin is pressed into the existing bore due to the spring preload. By lifting the locking pin, the arrest can be released and thus the U-shaped panel be pivoted.
As an alternative, an arrangement with two U-shaped panels is possible, wherein a first U-shaped panel is connected with the body and a second U-shaped panel is connected with the first U-shaped panel via a guiding groove and guiding rod and is, when a manual force is applied, repositioned vertically and horizontally and submerges into the U-shaped panel fastened to the body, so that the blocking elements are also arranged to be freely movable. Such a repositioning can be effected by a rotary element actuated by a key, for example.
In a further development of the invention, the locking elements have two rounded corners at a longitudinal edge, wherein one rounded corner is fitted with a stop face, and the rounded corners are oriented towards the rear panel of the body after their assembly. The rounded corners here serve as an abutment of the blocking elements which cause, due to their shape and out of their rigid position, a shifting of the locking elements by sliding over the rounding. The blocking elements themselves can only perform a horizontal movement. One of the rounded corners is here fitted with a stop face so that, when the locking elements have reached their end positions, the blocking elements of the other drawers at least partially directly run against the stop faces. As an alternative, the locking elements vertically shifted to the bottom prevent a horizontal movement of the blocking elements.
As an alternative, the locking elements could be caused to rotate by a blocking element, so that the other blocking elements run against a stop face.
In a further embodiment, the tool cabinet or tool and gear wagon has an upper storage tray on which, for example, the tools can be placed temporarily if these are needed successively several times, while other equipment has to be used in the meantime. It is equally possible that a tool and gear wagon has handles formed at least at the narrow sides of the storage tray which permit to pull behind the tool and gear wagon or offer the possibility of driving the tool and gear wagon to a desired position for the respective person by pulling the tool and gear wagon to the required position via the handles.
In a further embodiment of a tool and gear wagon, the narrow sides have a perforated cover or an opening for tool hooks. The narrow sides can be, for example, sheet metal walls which are arranged perpendicularly to the drawers and are part of the body. However, it could also be the rear panel of the tool and gear wagon, for example. The perforated covers or openings for tool hooks will here be individually used to receive particularly large and bulky tool components, in particular special tools, so that these are also conveniently available at any time.
In order to ensure the movability of a tool and gear wagon, the latter is fitted with two fixed rollers and at least one rotationally movable roller, preferably two rotationally movable rollers which are moreover provided with a safety catch. As a rule, the tool and gear wagons always have to be driven to the correct position, and the two fixed rollers and one or two movable rollers are used for this to facilitate the handling for the person who needs the tools.
The present invention is characterized in that a well-known tool cabinet or tool and gear wagon offers the possibilities, apart from a locking of the further drawers, when one drawer is pulled out, of blocking the other ones, where it is not relevant which one of the drawers is pulled out first. The tool cabinet or tool and gear wagon according to the invention also offers the possibility to not only pull out one but several drawers, optionally all drawers, so that the tools are always conveniently available when they are needed. To this end, it is possible to pivot the locking unit by an adjustment element into a position in which existing blocking elements are disengaged from the locking elements.
The invention will be further illustrated more in detail with reference to the figures in the form of a tool and gear wagon by way of example.
In the drawings:
The storage tray 6 has a cavity 15 in its central region which is laterally restricted by cavity-like indentations 16, 17. The complete storage tray 6 serves to place tools, in particular special tools, which have been removed from one of the drawers 4 and have to be placed down temporarily before they are used again. Otherwise, the non-depicted tools are returned to the drawers 4. To improve the handling of the tool and gear wagon, it is possible to pull the wagon, after the safety catches 13, 14 have been released via the existing grip hollows 18, 19, to a desired position and then actuate the safety catches 13, 14 again. On the opposite side of the grip hollows 18, 19, indentations 20, 21 are worked into the storage tray 6 which offer the possibility of placing screws or the like, for example. For the same reason, there also is an oblong indentation 22 behind the grip hollows.
The side walls 23 of the body 2 are here fitted with a number of different passages 24, 25 which permit to engage hooks and thus further tool parts.
In this representation, the function of the drawers 4 of the tool and gear wagon 1 is not yet obvious, but is illustrated by the following figures.
The blocking elements 56 protruding to the outside are furthermore coupled with an internal blocking element which is part of the telescopic rail 31. In case a movement of the outer blocking element 56 is not possible due to the locking elements 41, it is here simultaneously prevented that further drawers 4 can be pulled out.
In this view, three hinges 58 are visible which permit a pivoting of the U-shaped panel 42. The pivoting axis is here in a vertical arrangement. The hinges 58 are also only required to bring the plate 42 to a position in which a release of the blocking element 56 is given. From this view, the shape of the locking elements 41 with two roundings 53, 54 and one stop face 52 each furthermore becomes clear again. The functioning of the locking elements 41 is as follows. In the normal position, the blocking elements 56 are in contact with respectively adjacent locking elements 41 and abut against the rounding 54, so that, when a drawer is pulled out, the blocking element 56 is guided along the rounding by spring force and slides between the two adjacent locking elements 41. Simultaneously, the upper and lower locking elements 41 are pushed apart by a vertical movement of the upper locking elements 41 to an elevated position, so that further blocking elements 55 run against the stop face 52. The lower locking elements 41 are, in contrast, arrested in this position, so that no moveability is given in the vertical direction. This simultaneously causes that the blocking elements 56 of the lower drawers 4 are not able to come between the locking elements 41, and thus, there also is a fixed arrest of the lower drawers 4.
Only when the respective drawer 4 which has triggered the locking has been completely pushed in again, the locking elements 41 are unlocked and can move again in the vertical direction, whereby a release of another blocking element 56 is possible.
The situation of the locking elements 41 and locking elements 56 is here obvious again from
The second U-shaped panel 62 is furthermore fitted with a plurality of bores 77 which serve to fasten the locking elements 78. The locking elements 78 include oblong holes 79, 80 and are fixed on the second U-shaped panel 62 with screws 81 such that a vertical moveability is given.
The locking elements 78 have the same function as in the first embodiment to either lock the blocking elements or offer the option of pressing them between the individual locking elements 78 and thus cause a blocking of the other drawers.
By the vertical and horizontal repositioning of the second U-shaped panel 62 with respect to the non-depicted blocking elements, it is possible to cancel all blocking functions, so that, according to the invention, all drawers can be pulled out from the storage unit, in particular the tool and gear wagon.
The locking unit 40, 60 described for a tool and gear wagon 1 can also be used in a stationary tool cabinet, where other materials can be employed in some cases.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2019 006 380.5 | Sep 2019 | DE | national |
This application is the U.S. national stage of International Application No. PCT/DE2020/200074, filed on Sep. 9, 2020. The international application claims the priority of DE 102019006380.5 filed on Sep. 10, 2019; all applications are incorporated by reference herein in their entirety.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/DE2020/200074 | 9/9/2020 | WO |
